Finding very little of any of the above to be true..at least here in Michigan.
My local trackUS131 for years paid 1000 to win in the bracket classes, with an occasional 1200 “ special” night.
Now it’s 1500, with the occasional 2000 to win. 50 to enter when it’s 1500, 60 when it’s 2000.
Fri night test and tunes are packed with tuner kids and newer type street cars and trucks. Nice summer nights, lucky to get more than a couple passes it’s so busy. 35 dollars to test and tune. Wednesday night test and tunes tend to be less well attended and primarily more hard core racers( but it’s a weekday night..so…)
Had never heard of roll racing, but the last few years a whole weekend is devoted to a series that comes in that does it now. Not my cup of tea, but is what it is.
Junior dragsters are very popular, run in 3 different classes. Many of the kids have moved into race cars. Been cool to see.
Radial/ no prep/ grudge type events are now commonplace on the schedule, never were at all just a few years ago.
Not much gasser racing around here, so there is that, I guess. Unless they are booked in for a show.

One point I forgot to mention, bracket events are now 2 complete separate races on Saturday and Sunday. This has had the effect of having less weekends tied up in the points chase, as with two races many weekends, less weekends are needed to get this done. Which allows for more dates on the calendar for grudge, booked in shows, motorcycle event , snowmobile event, VW event, Yada, Yada.
Car counts for typical bracket weeks can range from 60 to over 100 in both box and no box, 40-50 in street , and roughly the same in juniors.
In fact, car count is so strong , it’s been taking 2.5-3 hours to get everybody through a time trial, which has resulted in 1 time trial most of the time, vice 2 like it used to be